Messages in this thread | | | From | Zi Yan <> | Subject | Re: [PATCH] mm: mempolicy: don't have to split pmd for huge zero page | Date | Fri, 04 Jun 2021 17:23:51 -0400 |
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On 4 Jun 2021, at 16:35, Yang Shi wrote:
> When trying to migrate pages to obey mempolicy, the huge zero page is > split then the page table walk at PTE level just skips zero page. So it > seems pointless to split huge zero page, it could be just skipped like > base zero page. > > Set ACTION_CONTINUE to prevent the walk_page_range() split the pmd for > this case. > > Signed-off-by: Yang Shi <shy828301@gmail.com>
LGTM. Thanks.
Reviewed-by: Zi Yan <ziy@nvidia.com>
— Best Regards, Yan, Zi [unhandled content-type:application/pgp-signature] | |